公开(公告)号：US5523936A

公开(公告)日：1996-06-04

申请号：US279531

申请日：1994-07-25

Applicant: Ching-Shan Leu ,  Jiun-Bin Hwang

Inventor： Ching-Shan Leu ,  Jiun-Bin Hwang

IPC: G05F1/40 ,  H02M3/335

CPC classification number: G05F1/40 ,  H02M3/33538

Abstract: A built-in input filter forward converter performs to shape an input current to a non-pulsating fashion. Shaping action is obtained by placing two cross-coupled capacitors to a plurality of splitting windings of a power transformer such that the input current will not be interrupted. The cross-coupled capacitors also operate as a lossless snubber by allowing the leakage inductance energy to be stored and recovered during normal operation. Thus significant improvements of reducing harmonic of the input current, input current ripple, and increasing the converter's efficiency are achieved.

Abstract translation: 内置输入滤波器正激转换器执行以非脉动方式对输入电流进行调整。 通过将两个交叉耦合电容器放置在电力变压器的多个分束绕组上使得输入电流不会被中断来获得成形作用。 交叉耦合电容器也可以通过在正常工作期间将漏电感能量进行存储和恢复来作为无损耗缓冲器。 因此，实现了降低输入电流谐波，输入电流纹波和提高转换器效率的显着改进。

公开(公告)号：US5640318A

公开(公告)日：1997-06-17

申请号：US673578

申请日：1996-07-01

Applicant: Ching-shan Leu

Inventor： Ching-shan Leu

IPC: H02M3/335 ,  H02M7/537

CPC classification number: H02M3/3353 ,  H02M3/33569

Abstract: A forward converter for a switching power supply includes a direct current voltage source having a positive electrode and a negative electrode, a transformer having four identical primary windings each having a first end and a second end and a secondary winding connected to a load, the first end of a first primary winding and the second end of a fourth primary winding being connected to the positive electrode of the voltage source, the first end of a third primary winding and the second end of a second primary winding are connected to the negative electrode of the voltage source, two series-connected power switches connected between the second end of the first primary winding and the first end of the second primary winding and defining a common point between the power switches for simultaneously turning on and off in response to a control signal, a first diode connected between the common point of the power switches and the first end of the fourth primary winding, a second diode connected between the second end of the third primary winding and the first end of the fourth primary winding, a first capacitor connected between the second ends of the first and the third primary windings, and a second capacitor connected between the first ends of the second and the fourth primary windings.

Abstract translation: 用于开关电源的正激转换器包括具有正电极和负电极的直流电压源，具有四个相同的初级绕组的变压器，每个绕组具有连接到负载的第一端和第二端以及次级绕组，第一 第一初级绕组的端部和第四初级绕组的第二端连接到电压源的正极，第三初级绕组的第一端和第二初级绕组的第二端连接到 电压源，两个串联连接的功率开关，其连接在第一初级绕组的第二端和第二初级绕组的第一端之间，并且在功率开关之间限定一个公共点，以响应于控制信号同时导通和截止 连接在功率开关的公共点和第四初级绕组的第一端之间的第一二极管，第二二极管连接器 在所述第三初级绕组的第二端和所述第四初级绕组的所述第一端之间连接有第一电容器，所述第一电容器连接在所述第一和第三初级绕组的第二端之间，第二电容器连接在所述第二初级绕组的第一端之间， 第四个初级绕组。

公开(公告)号：US5901054A

公开(公告)日：1999-05-04

申请号：US993297

申请日：1997-12-18

Applicant: Ching-Shan Leu ,  Jeang Hwang ,  Wueichan Liu

Inventor： Ching-Shan Leu ,  Jeang Hwang ,  Wueichan Liu

IPC: H02M3/28 ,  H02M1/12 ,  H02M3/24 ,  H02M3/335

CPC classification number: H02M3/285

Abstract: A PWM controlling circuit includes a signal generator and two PWM controllers. The signal generator comprises an oscillator, a plurality of inverters, and two RC delay networks. The oscillator and the inverters are composed of elementary elements, respectively, such as diodes, resistors, inverters and capacitors. The PWM controlling circuit in accordance with the present invention can be implemented with low cost, and the duty cycles thereof are not limited to 50%.

Abstract translation: PWM控制电路包括信号发生器和两个PWM控制器。 信号发生器包括振荡器，多个反相器和两个RC延迟网络。 振荡器和反相器分别由基本元件组成，如二极管，电阻，反相器和电容器。 根据本发明的PWM控制电路可以以低成本实现，其占空比不限于50％。

公开(公告)号：US5801932A

公开(公告)日：1998-09-01

申请号：US859164

申请日：1997-05-20

Applicant: Jiunn-Bin Hwang ,  Te-Ping Tsai

Inventor： Jiunn-Bin Hwang ,  Te-Ping Tsai

IPC: H02M3/28 ,  H02M3/335

CPC classification number: H02M3/285 ,  H02M3/33569

Abstract: An interleaved current-fed forward converter apparatus includes two transformers each including two primary windings and a secondary winding connected to a load, two power switches each of which is connected between the primary windings of a corresponding one of the two transformers. The two power switches are alternately turned on and off in response to two pulse signals provided by a conventional controller. Two capacitors each are connected between the primary windings of respective one of the two transformers. One of the two transformers functions to transfer power to the load while the other functions as an inductor so as to alleviate the necessity of a conventional output inductor, and vice versa alternately. The two capacitors are alternately charged/discharged in response to the switching operation of the two power switches.

Abstract translation: 交错电流馈送正激变换器装置包括两个变压器，每个变压器包括两个初级绕组和连接到负载的次级绕组，两个电源开关，每个电源开关连接在两个变压器中对应的一个变压器的初级绕组之间。 响应于由常规控制器提供的两个脉冲信号，两个电源开关交替地导通和截止。 两个电容器各自连接在两个变压器中的相应一个的初级绕组之间。 两个变压器中的一个用于将功率传递到负载，而另一个用作电感器，以便减轻常规输出电感器的必要性，并且交替地减轻。 响应于两个电源开关的开关操作，两个电容器被交替地充电/放电。

公开(公告)号：US07701361B2

公开(公告)日：2010-04-20

申请号：US11781556

申请日：2007-07-23

Applicant: Ming-Town Lee ,  Tain-Wen Suen ,  Tung-Jung Hsu ,  Chuen-Lin Bau

Inventor： Ming-Town Lee ,  Tain-Wen Suen ,  Tung-Jung Hsu ,  Chuen-Lin Bau

IPC: B60Q1/48 ,  G08G1/14

CPC classification number: G08G1/14

Abstract: A parking information sensing device is disclosed. Each parking space in a parking lot is disposed with a parking information sensing device, detecting whether a car on the parking space. By means of a driving control circuit, the sensing device drives a light emitting unit to emit a light and a reflecting element of the parking space is on a pathway of the light. Light is reflected by the reflecting element and then passes light sensing unit that detects the reflected light and generates a first sensing signal sent to the driving control circuit. Thus the driving control circuit judges if there is no vehicle on the parking space. On the other hand, it judges if there is a car on the parking space according to another sensing signal. The sensing device further includes a first transmitting/receiving unit that forms a wireless mesh network among parking information sensing devices.

Abstract translation: 公开了一种停车信息感测装置。 停车场中的每个停车位设置有停车信息感测装置，检测停车位上的轿厢。 通过驱动控制电路，感测装置驱动发光单元发光并且停车空间的反射元件在光的通路上。 光被反射元件反射，然后通过检测反射光的光感测单元，并产生发送到驱动控制电路的第一感测信号。 因此，驾驶控制电路判断停车空间是否没有车辆。 另一方面，它根据另一个感测信号判断停车位是否有汽车。 感测装置还包括在停车信息感测装置中形成无线网状网络的第一发送/接收单元。

公开(公告)号：US07544847B1

公开(公告)日：2009-06-09

申请号：US12285645

申请日：2008-10-10

Applicant: Chan-Yuan Ho ,  Tsair-Feng Lin ,  Chun-Hsu Lin ,  Shieh-Jun Wang

Inventor： Chan-Yuan Ho ,  Tsair-Feng Lin ,  Chun-Hsu Lin ,  Shieh-Jun Wang

IPC: C07C17/00

CPC classification number: C07C17/38 ,  C07C17/18 ,  C07C17/392 ,  C07C25/13

Abstract: A method for producing 1,4-bis(dichloromethyl)tetrafluorobenzene is disclosed, which is achieved by reacting tetrafluoroterephthaldehyde, SOCl2 and organic solvents. In the synthesis of 1,4-bis(dichloromethyl)-tetrafluorobenzene by adding formamides as catalyst, there are remarkable advantages which include shortening the reaction time; simplifying the synthesizing steps and raising the yield of the product.

Abstract translation: 公开了生产1,4-双（二氯甲基）四氟苯的方法，其通过使四氟对苯二甲醛，SOCl 2和有机溶剂反应来实现。 通过加入甲酰胺作为催化剂合成1,4-双（二氯甲基） - 四氟苯，有明显的优点，包括缩短反应时间; 简化合成步骤并提高产品的产率。

公开(公告)号：US06856380B2

公开(公告)日：2005-02-15

申请号：US10336846

申请日：2003-01-06

Applicant: Kwo-Jyr Wong ,  Kuo-Shu Chang ,  Re-Fun Chen

Inventor： Kwo-Jyr Wong ,  Kuo-Shu Chang ,  Re-Fun Chen

IPC: G01S7/497 ,  G01S17/89 ,  G01C3/08 ,  G06K9/00 ,  H04N7/18

CPC classification number: G01S7/497 ,  G01S17/89

Abstract: An aerial vehicle speed correlation method for two-dimensional visual reproduction of laser radar images of the present invention is capable of altering and controlling the output timing of the invention's laser radar system rated output lines based on the moving distance and the speed of an aerial vehicle. The speed error correlation method of the present invention is not limited to outputting one output line for every scanned line (N) for reducing the accumulation of geometric distortion error along the in-track direction of the scan frame. The speed correlation method of the present invention uses a set of generated fire table of equation to correct tangential error along the cross-track direction and to improve the reproduction quality of the laser radar images.

Abstract translation: 本发明的激光雷达图像的二维视觉再现的航空速度相关方法能够基于飞行器的移动距离和速度来改变和控制本发明的激光雷达系统额定输出线的输出定时 。 本发明的速度误差相关方法不限于为每个扫描线（N）输出一条输出线，以减少沿着扫描帧的轨道内方向的几何失真误差的累积。 本发明的速度相关方法使用一组生成的等式的火表来校正沿着横向方向的切向误差，并提高激光雷达图像的再现质量。

公开(公告)号：US6070181A

公开(公告)日：2000-05-30

申请号：US49605

申请日：1998-03-27

Applicant: Scott Yeh

Inventor： Scott Yeh

IPC: G06F7/552

CPC classification number: G06F7/552 ,  G06F2207/5525

Abstract: An envelope detection method by using a peel cone approximation concept and an envelope detection circuit which implements the envelope detection method are disclosed. The envelope detection circuit includes an absolute value-determining circuit, a maximum/minimum value-determining circuit, a plurality sets of comparison circuits, an address encoder, a read only memory (ROM), and a multiplier/adder. A delaying circuit for synchronization is further included in the envelope detection circuit. With the method and the circuit for an envelope detection by using a peel cone approximation, advantages of a compact circuit structure, less operation latency, a low approximation error and a low cost are all achieved.

Abstract translation: 公开了一种通过使用剥离锥近似概念的包络检测方法和实现包络检测方法的包络检测电路。 包络检测电路包括绝对值确定电路，最大/最小值确定电路，多组比较电路，地址编码器，只读存储器（ROM）和乘法器/加法器。 用于同步的延迟电路还包括在包络检测电路中。 通过使用剥离锥近似的用于包络检测的方法和电路，可以实现紧凑的电路结构，较少的操作延迟，低近似误差和低成本的优点。